package com.ruoyi.web.controller.common;

import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.TimeUnit;
import javax.annotation.Resource;
import javax.imageio.ImageIO;

import cn.hutool.core.util.RandomUtil;
import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.constant.CacheConstants;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.utils.appsdks.AliyunUtils;
import com.ruoyi.common.utils.appsdks.WechatUtils;
import com.ruoyi.system.service.ISysUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.FastByteArrayOutputStream;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import com.google.code.kaptcha.Producer;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.core.redis.RedisCache;
import com.ruoyi.common.utils.sign.Base64;
import com.ruoyi.common.utils.uuid.IdUtils;
import com.ruoyi.system.service.ISysConfigService;

/**
 * 验证码操作处理
 *
 * @author ruoyi
 */
@RestController("ryCaptchaController")
public class CaptchaController {
    @Resource(name = "captchaProducer")
    private Producer captchaProducer;

    @Resource(name = "captchaProducerMath")
    private Producer captchaProducerMath;

    @Autowired
    private RedisCache redisCache;

    @Autowired
    private ISysConfigService configService;

    @Autowired
    private ISysUserService userService;

    /**
     * 生成验证码
     */
    @GetMapping("/captchaImage")
    public AjaxResult getCode() {
        AjaxResult ajax = AjaxResult.success();
        boolean captchaOnOff = configService.selectCaptchaOnOff();
        ajax.put("captchaOnOff", captchaOnOff);
        if (!captchaOnOff) {
            return ajax;
        }

        // 保存验证码信息
        String uuid = IdUtils.simpleUUID();
        String verifyKey = CacheConstants.CAPTCHA_CODE_KEY + uuid;

        String capStr = null, code = null;
        BufferedImage image = null;

        // 生成验证码
        String captchaType = RuoYiConfig.getCaptchaType();
        if ("math".equals(captchaType)) {
            String capText = captchaProducerMath.createText();
            capStr = capText.substring(0, capText.lastIndexOf("@"));
            code = capText.substring(capText.lastIndexOf("@") + 1);
            image = captchaProducerMath.createImage(capStr);
        } else if ("char".equals(captchaType)) {
            capStr = code = captchaProducer.createText();
            image = captchaProducer.createImage(capStr);
        } else {
            image = captchaProducer.createImage("");
        }

        redisCache.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
        // 转换流信息写出
        FastByteArrayOutputStream os = new FastByteArrayOutputStream();
        try {
            ImageIO.write(image, "jpg", os);
        } catch (IOException e) {
            return AjaxResult.error(e.getMessage());
        }

        ajax.put("uuid", uuid);
        ajax.put("img", Base64.encode(os.toByteArray()));
        return ajax;
    }

    /**
     * 生成验证码
     */
    @GetMapping("/phoneCaptcha")
    public AjaxResult phoneCaptcha(String phone) {
        //首先判断用户是否存在
        List<SysUser> users = userService.selectUsersByUserPhone(phone);
        if (users.size() == 0) {
            return AjaxResult.error("发送失败，该手机号未注册账号。");
        }
        // 保存验证码信息
        String uuid = IdUtils.simpleUUID();
        String code = RandomUtil.randomNumbers(6);

        AjaxResult ajax = AjaxResult.success();
        ajax.put("uuid", uuid);
        //发送验证码  阿里云
        ajax.putAll(AliyunUtils.sendCode(phone, code));
        String key = CacheConstants.CAPTCHA_PHONE_CODE_KEY + phone;
        redisCache.setCacheObject(key, code, Constants.CAPTCHA_PHONE_EXPIRATION, TimeUnit.MINUTES);
        return ajax;
    }

    /**
     * 发送微信验证码
     *
     * @param phone  手机号
     * @param openid openid
     */
    @GetMapping("/wechatCaptcha")
    public AjaxResult wechatCaptcha(String phone, String openid) {
        // 保存验证码信息
        String uuid = IdUtils.simpleUUID();
        String code = RandomUtil.randomNumbers(6);
        AjaxResult ajax = AjaxResult.success();
        ajax.put("uuid", uuid);
        //发送验证码  阿里云
        ajax.putAll(WechatUtils.sendVerificationCode(openid, code));
        String key = CacheConstants.CAPTCHA_WECHAT_CODE_KEY + phone;
        redisCache.setCacheObject(key, code, Constants.CAPTCHA_PHONE_EXPIRATION, TimeUnit.MINUTES);
        return ajax;
    }
}
